I'm guessing you're going down for the half marathon? This will be our 4th marathon weekend and we've learned that less planning is more! There are so many things going on, and so many diversions (like naps, after being on a bus at 3:30 in the morning and then running ungodly distances!), so it always seems to sideline any plans, anyway. Also, the parks are pretty much dead, so it's really easy to wing it. I'd make one ADR for a celebratory meal, and then not worry about the rest.
Have a great trip and a fantastic 13.1 miles! We're going down on the 5th, and I can't wait!